package ftbfs in oneiric

/bin/bash ./libtool --tag=CC --mode=link gcc -g -O2 -module -avoid-version -no-undefined -Wl,--as-needed -Wl,-z,defs -o libaurora.la -rpath /usr/lib/gtk-2.0/2.10.0/engines aurora_rc_style.lo aurora_style.lo aurora_theme_main.lo support.lo animation.lo aurora_draw.lo -pthread -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgio-2.0 -lpangoft2-1.0 -lpangocairo-1.0 -lgdk_pixbuf-2.0 -lcairo -lpango-1.0 -lfreetype -lfontconfig -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lrt -lglib-2.0
gcc -shared .libs/aurora_rc_style.o .libs/aurora_style.o .libs/aurora_theme_main.o .libs/support.o .libs/animation.o .libs/aurora_draw.o -Wl,--as-needed -lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgio-2.0 -lpangoft2-1.0 -lpangocairo-1.0 -lgdk_pixbuf-2.0 -lcairo -lpango-1.0 -lfreetype -lfontconfig -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lrt -lglib-2.0 -Wl,-z -Wl,defs -pthread -Wl,-soname -Wl,libaurora.so -o .libs/libaurora.so
.libs/aurora_style.o: In function `aurora_style_draw_expander':
/build/buildd/gtk2-engines-aurora-1.5.1/./src/aurora_style.c:1762: undefined reference to `floor'
/build/buildd/gtk2-engines-aurora-1.5.1/./src/aurora_style.c:1762: undefined reference to `ceil'
/build/buildd/gtk2-engines-aurora-1.5.1/./src/aurora_style.c:1766: undefined reference to `floor'
.libs/aurora_style.o: In function `aurora_style_draw_check':
/build/buildd/gtk2-engines-aurora-1.5.1/./src/aurora_style.c:1022: undefined reference to `sqrt'
/build/buildd/gtk2-engines-aurora-1.5.1/./src/aurora_style.c:1022: undefined reference to `sqrt'
.libs/aurora_style.o: In function `aurora_style_draw_option':
/build/buildd/gtk2-engines-aurora-1.5.1/./src/aurora_style.c:977: undefined reference to `sqrt'
/build/buildd/gtk2-engines-aurora-1.5.1/./src/aurora_style.c:977: undefined reference to `sqrt'
.libs/aurora_style.o: In function `aurora_style_draw_box':
/build/buildd/gtk2-engines-aurora-1.5.1/./src/aurora_style.c:658: undefined reference to `sqrt'
.libs/aurora_style.o:/build/buildd/gtk2-engines-aurora-1.5.1/./src/aurora_style.c:906: more undefined references to `sqrt' follow
.libs/aurora_draw.o: In function `rotate_mirror_translate':
/build/buildd/gtk2-engines-aurora-1.5.1/./src/aurora_draw.c:109: undefined reference to `sincos'
collect2: ld returned 1 exit status
make[1]: *** [libaurora.la] Error 1